Enhancement of field electron emission in topological insulator Bi2Se3 by Ni doping
Literature Information
Kushal Mazumder, Alfa Sharma, Yogendra Kumar, Mahendra A. More, Rupesh Devan
Nanostructures of bismuth selenide (Bi2Se3), a 3D topological insulator material, and nickel (Ni) doped Bi2Se3 samples were prepared by a hydrothermal method to explore the field emission properties. An enrichment in the field electron emission (FE) properties in terms of the threshold and turn-on field values of Bi2Se3 and Ni doped Bi2Se3 nanostructures was measured at a base pressure of ∼1 × 10−8 mbar. Using the background of the Fowler–Nordheim (FN) theory a field enhancement factor (β) of 5.7 × 103 and a threshold field value of 2.5 V μm−1 for 7.5% Ni doped Bi2Se3 were determined by investigating the J–E plot of the FE data. The value of β is three times higher than that of pure Bi2Se3 confirming the superior FE properties. The emission current was found to be very stable with the property of long standing durability as a negligible amount of variation was observed when measured at a constant value of 5 mA for 3 hours. The experimental results signify many opportunities for potential applications of Ni doped Bi2Se3 as a source of electrons in scanning as well as transmission electron microscopy, flat panel displays and as an X-ray generator, etc.
Related Literature
The Hantzsch reaction in polymer chemistry: synthesis and tentative application
Haibo Wu, Zhiming Wang, Lei Tao
DOI: 10.1039/C7PY01718A
Retinol initiated poly(lactide)s: stability upon polymerization and nanoparticle preparation
Diana Kalden, Matthias Westerhausen
DOI: 10.1039/C7PY00881C
Advantages and limitations of diisocyanates in intramolecular collapse
Feng Wang, Charles E. Diesendruck
DOI: 10.1039/C7PY00712D
Control of the alignment of liquid crystal molecules on a sequence-polymerized film by surface migration and polarized light irradiation
Feng Cai, Feng Zheng, Xuemin Lu, Qinghua Lu
DOI: 10.1039/C7PY01576C
Electron beam lithography of poly(glycidol) nanogels for immobilization of a three-enzyme cascade
Jacob N. Lockhart, Anthony B. Hmelo, Eva Harth
DOI: 10.1039/C7PY01904A
Elaboration of bio-epoxy/benzoxazine interpenetrating polymer networks: a composition-to-morphology mapping
P. Verge, S. Peralta, Y. Habibi, C. Vancaeyzeele, F. Vidal
DOI: 10.1039/C7PY01755C
Cell-penetrating poly(disulfide)-based star polymers for simultaneous intracellular delivery of miRNAs and small molecule drugs
Wenhua Yang, Changmin Yu, Chunxian Wu, Shao Q. Yao, Shuizhu Wu
DOI: 10.1039/C7PY00666G
Polymer side-chain substituents elucidate thermochromism of benzodithiophene–dithiophenylacrylonitrile copolymers – polymer solubility correlation of thermochromism and photovoltaic performance
Chiao-Wen Lin, Chao-Tsen Chen, Jan Golder
DOI: 10.1039/C7PY00338B
You might also like
What precautions should be taken when handling 4-(2-Furylmethyl)thiomorpholine 1,1-dioxide (CAS: 79206-94-3)?
When handling 4-(2-Furylmethyl)thiomorpholine 1,1-dioxide (CAS: 79206-94-3), it ...
What precautions should be taken when handling 4-Chloro-N-[2-(4-morpholinyl)ethyl]benzamide (CAS: 71320-77-9)?
When handling 4-Chloro-N-[2-(4-morpholinyl)ethyl]benzamide (CAS: 71320-77-9), it...
How should waste containing 2-[2-(2-Methoxyethoxy)ethoxy]ethyl 4-methylbenzenesulfonate (CAS: 62921-74-8) be handled?
Waste containing this compound (CAS: 62921-74-8) should be handled according to ...
How should waste containing (S)-Methyl 2-amino-3-cyclohexylpropanoate be handled?
Waste containing (S)-Methyl 2-amino-3-cyclohexylpropanoate should be collected i...
How is 5-({4-[(2S,4R)-4-Hydroxy-2-methyltetrahydro-2H-pyran-4-yl]-2-thienyl}sulfanyl)-1-methyl-1,3-dihydro-2H-indol-2-one (CAS: 166882-70-8) typically synthesized?
This compound can be synthesized using a multi-step process involving the conjug...
Are there alternatives to (2E)-3-(3,4-Dichlorophenyl)acrylic acid (CAS: 7312-27-8) in synthesis?
There are several alternatives to (2E)-3-(3,4-Dichlorophenyl)acrylic acid in syn...
How should Ethyl 6-(2-nitrophenyl)imidazo[2,1-b][1,3]thiazole-3-carboxylate (CAS: 925437-84-9) be stored?
Ethyl 6-(2-nitrophenyl)imidazo[2,1-b][1,3]thiazole-3-carboxylate (CAS: 925437-84...
How should waste containing 2-(1,3-Thiazol-2-yl)ethanamine (CAS: 18453-07-1) be handled?
Waste containing 2-(1,3-Thiazol-2-yl)ethanamine (CAS: 18453-07-1) should be coll...
How is Methyl 5-iodo-2-methylbenzoate (CAS: 103440-54-6) typically synthesized?
Methyl 5-iodo-2-methylbenzoate can be synthesized through the iodination of meth...
How is 5-Chloro[1,2,4]triazolo[1,5-a]pyridine (CAS: 1427399-34-5) typically synthesized?
5-Chloro[1,2,4]triazolo[1,5-a]pyridine is commonly synthesized via the condensat...
Source Journal
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.












![5-Acetyl-2,3-dihydrobenzo[b]furan structure 5-Acetyl-2,3-dihydrobenzo[b]furan structure](https://static.chemtradehub.com/structs/908/90843-31-5-eea4.webp)

